Counterbalancing mechanism for single-acting pumps.



D. A1 CUNNELL. COUNTERBALANCING MECHANISM FOR SINGLE ACTING PUMPS. APPLICATION HLED 1uLYs1, ma. J Jgymm atend Feb, 1S, 1919.

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To all 'whom t may concern.L

s iTEnf sTfiTiis PATENT oniricao nAvno e. oo jNNELL, or Los"l ANGELES, onnironnrn GoUNTEnBALANcIiw Mnonnnisiu Fon SINGLE-ACTING rUiviPs.

Be it known that I, DAVID A. CONNELL, a citizen ofy the United States, residing at Los Angeles, y'in the county pf Los Angeles and State of California, lhave invented 'new and useful llmprovements in Counterbalancing Mechanism for Single-Acting Pumps, of-

4 which the following is a specication.

My object is to make a counterbalancing mechanism for single acting pumps, and my invention consists of the novel features herein shown, described and claimed.

Figure 1 isa side elevation of a counterbalancing mechanism for single acting pumps embodying the principles of my invention as seen looking in the direction indicated by the arrow 1 in Figs. 2 and 3. Fig. 2 is a top plan view. Fig. 3 is a vertical cross section line 3-3 of Figs. 1 and '2.

Fig. 4 is a vertical cross section on the line 4-4 ofFigs. 1 and l2. n

Fig. 5 is a fragmentary vertical sectional detail on the line 5-5 of Fig. 1. The base 1 is rectangular, flat and of considerable. size. The ground at the well where the pump is to be located should be prepared to make a solid foundation. 2 for the basel so that the base 1' will stand level. The pump A.casing 3 is inserted downwardly through one end of the base 1 and a Hange 4 upon the fitting 5 yis screzwed upon the upper end of the the base 1 to` rigidly locate the pump relative to the base.l The polishing rod 6 extends downwardly through the stulling box 7 into the pump casing 3 to the plunger. The spout 8 carries pump. i

x 'lhe -samson post construction 9 comprises angle plates 10 and 11 vsecured to the base l by bolts 12 and 13, posts 14 and 15 mounted on the ,vertically uponlthe basel with their lower buckle guy 2O is connected to yand is connected to the Specification o? Letters Patent. Application iled July 31, 1918. Serial/No. 247,657.

connected to the the casing 3 and rests upon,

the liquid raised by the rodsA 49 and .ward-ly through the'ends of the fitting and -b extends downwardly and forwardly and is rammed Feb. is, ieio.

5 clamp 21. Fittings 24 and 2 upper ends of the posts 14 and 15, turnbuckle guys 26 and 27 are connected to these ttings and extend backwardly, downwardly 'and 'outwardly and are connected to fittings 28 and29 secured to the base 1, so that by manipulating the turn-buckles 30, 31, 32 and 33 the guys may all be tightened to hold thesamson post construction 9 rigid relative to the base 1 and rigid relative to the pump fitting the pump' the out of line.

`@Bearings 34 and 35 `extend upwardly from f ends of the'J brace 18, the walking beam bearing 36 isf mounted between the bearings 34 and 35 and held in 37, the walkin 'beam38 is rigidly fixed to the bearing 36, i'e bearing beam being located at the bottom and longitudinal center of the beam, so that the beam mayvibrate back and forth from a horizontal plane. A. radius head 39 is formediintegral with an attachingplate 40 having a longitudinal .slot 41, and the plate 40 is placed upon the forward end of the beam 38 and a bolt 42 is inserted downwardly through the slot 41 and the beam so that by-loosening the bolt the head 39 may adjust to and from fthe/ pivot pin 37. Links43 and 44 are connected to the head 39 by a bolt 45 and extend downpartsiwill not yield or get are connected to the rear faces of the n 5 so that in the operation ofV t p wardly on the opposite sides of the vhead 39 and are connected to a clamp 46 adjustingl'y mounted upon the polishing rod 6. t A bearing 4.7 is fixed upon the rear end of the beam 3 8, a section of pipe 48/ is l`mounted in the 4bearing 47 and co" '50 are inserted through the ends of the pipe 48 in place by nuts 51 and 52.- t

`The bearings` 53 and 54 are fixed to the front faces of the posts 55 ts between lthe bearings 53 and 54,'a lever 56 extends between the posts 14 and 15 and is connected to the bearing 55, a bcaring 57 is secured to the end of the lever 56, a through the bearing 57 ofthe rods 49 'and 50 pwardly pipe 58 is mounted and the lower ends are inserted downpipe 58, there being nuts 59 A, weight box 61 is mounted upon the' rear end of the lever 56 etween the rods 49 and 50, and strap loops V62 and 6,3 are placed around the'rods 4,9v and.

n ectinglower face and rear and 60 upon the lowerl ends of the rods 49 and 50.

'and held I t 1,4 and 15, a bearing 50 and secured to the weight box 61, said.

box 61 when it is walking beam may be swung upwardly, as

' 74 is cormected to a.` pumping ishng rod tightened the loops being long enough to allow the rods 49 and 50 to vibrate to a limited extent, and so that when the rods 49 and 50l are removed from the pipe 48 the loops 62 and 63 will hold the rods upright, as shown in dotted.

lines in Fig. 1. A block 64is mounted upon the base 1 under the lever 56, and blocks 65. and 66 may be placed on top of the block 64l so as tosup-port the lever 56 and the weight` desired to disconnect the rods 49 and 50 from the pipe 49 so thatthe Vshown in dotted lines 1n Fig. 41, when it is or the like. A are secured to th desired to pull the pump,

Angle irons 67 and 68 beam 38'and 'a post 69 is mounted with its lower end between the angle irons 67 and 68, the post being in direct line with thepivot bolt 37 and the .post being rigidly secured to the angle irons 'and resting upon thebeam. Braces 70 and 71 connect the upper end 'of the post 69 to thebeam'38, a bearing 72 is connected to the upper end of the post 69, aclevis 73 is connected to the bearing 7 2, and the cable 74 has a hook 75. engaging the clevis 73. In practical operation the cable the jack'rbtates or operates,'the beam 32 1s vibrated to work the'pump' rod up and down.

vThe windmill rod 76 is connected to areducing coupling 77, a=sectionf 7 8 'of large pipe isscrewed in to the lower -end of the reducin coupling 77, a sleeve 79 is slidingly mounte upon the polishing rod 6 within the lower end of the pipe 78, and a'clamp `80 has a bearing 81 'clamping the lower end of the pipe 78, and a bearing 82 clamping the polto the pump rod 6 and the operation of the considerable height,

ancing weight direct to windmill will operate the pump, and when the bearing 82 and sleeve 79 will slide uponthe polishing rod.

The mechanism may be operated either from a windmill, or `the like, through the stem 76, or from a jack through the cable 74'. The weight 83 in the box 61 may be of rock, sand, earth, scrap-iron, or any convenient material,l andmay be increased or de# creased at 'willso as to counterbalance the pumping mechanism to the desired extent.

I call especial attention to the advantage of using the counter lever56 and the weight box 61, instead .of applying thecou-nterbalthe beam 38. Necesconstruction 9 is' of which may be six or sarily the samson post eight feet, and in order to counterbalance the 'pump rods, etc., on a deep well pump, the weight 83 may bea ton,

near theground than it would be to handle it uponthe walking beams 38. Furthermore,

"by removing the cap is tilted out of use, as shown 1n vrial that may be vratus istorn down the weight is dumped and Jack so that as place 6, so 'that when the clamp 80 1s windmill rod 76 is connected' end of the main and it is a great deal easier to handle this we' 'ht in the `box 61 -position'disconnected heim-.the pump rods and pull the pump rods, orperform other operations, and a simple way todo this is to place the blocks and 66 `upon the block 64 under the counter lever 56 so as to support the weight 83 in the box 61; then the rods 49 and 50 may be disconnected from the beam 38 either by removing the nuts 51 and 52, or 84 of the bearing 47, then the rods 49 and 50 may be tipped backward, as shown by dotted lines in Fig. 1, and the rods will be supported by the loops 62 and .63 while the walking-beam mechanism dotted lines. Then, iurthermore, the weight 83 may be omitted from the box until the job is set u v ready to run and this weight may be shovels into the boxv from an earth or other matehan y, and when the appathrownl away. An equal counterbalance weight upon the beam made of cast-iron, or the like, would have to be transported from a foundry and would cost considerable money, and it would require a derrick and considerable work to elevate the weight and 't in position upon the beam and then it would be upon the beam and could notl be put out of use or disconnected from the pumping mechanism. l

Various changes maybe made without departing from the splrit of my invention as claimed.

Iclaim: l

1. A counterbalancing mechanism for deep' well pumps comprising a samson post, a

.main beam pivotally mounted horizontally across the top of the samson post, means of connecting one end ofthe main beam to a pump rod, a'counter beam l-pivotally connected to the lower part of the samson post and parallel with the opposite end of the main beam from the pump rod, means for remov-v ably connecting the free end of the counter beam to the corresponding end of the main means for mounting a weight upon the beam, end of the counter beam and means for connecting power to the main beam.

2. A counterbalancing mechanism for deep well pumps comprising a base, a samson post rigidly connected to the base, a main beam pivotally mounted horizontally at the top of the samson post, means for connect-ing one end of the main beam to a pump rod, a coun- -ter beam pivotally connected to thel lower part of the samson -post below the opposite beam from the pump rod end, means for removably connecting the free end of the counter beam to the corresponding end'of the main beam, a weight box mounted upon the free end of the counter beam, and means for connecting power to the main beam.

3. A counterbalancing mechanism for deep well pumps eonuprisingrgn a base, a Samson lpost rigidly mounted Veljtieally upon the base, a mein bee-m -pvotally connected to the top of the Samson post, means for connecting one end of the main beam to a pump rod, a coun ter beam pvotelly connected to the lower end of the Samson post and pvotally conneoted with the opposite end of the mein beam from the pump end, means for removlo ably connecting the free end of 'the counter beam to the corresponding end of the main beam, a, Weight box upon the free end of the counter beam, a block upon the base under the counter beam and removable blocks adapted to be placed upon the top of the Ui` first block to support the Counter beam and Weight when and While the main beam 'is disconnected.

In testimony 'Whereof have Signed my name to this specification.

D. A. CUNNELL. 

